Snap-switch.



C. C.STIRL1NG.

SNAP SWITCH.

APPLICAHUN FILED ocr.1f1. 1911.

1 ,267;604. 11116111011 May 2s, 11118.

A arne g and especially i to UNTTED sTATEs PATENT OFFICE.

Ommen c. s'rrnnnwo, or nnnTronn, CONNECTICUT, Assioma To Tnx mrs HEGEMAN MANUFACTURING COMPANY, oF HARTFORD, CONNECTICUT,"A,:D03 PonATIoN or CoNNncTICUT.

BNAP-SWITCH.

Spealcdti Application lied October 19, 1917. Serial No. 197,422.

To allwhomtma concern.'

. Be it known t t IA Non C. STIB- LING, a citizen of the limited States, residing at Hartford in the count of Hartford and State of onnecticut, `ave .invented certain newi and useful Improvements Snap-Switches, ofcwhioh the f)followingfis general way by 5 and which in eiect cons orms tothe interior shape of the shall; n

Within the casing ing member auch as that eral' wayl by. This switching reappear xnountn'ull 1 for hcifeina y 4a'oovenlentabout annxr mgA preferably a s eciication. -g 1 oscillatory; TIt ma;7 co {notan-elongated his invention* relates 'to 'snap'"switeliee lrip of strap-metalldtl'iily- .bout` hij its 'that type involvin the endsfto resent the practically duplicate use 0f but a Smale lemenmrnemuyf me, x 'termina which sequins-many disposed ally operable,'ffor effecting .t ough 'snitable-. from.. means, the nry,".movement 10115'the@roetfilter.` The switching member,the'-primary p` see'of` thereto the Lfshaped orangular bracket or the invention being `the provision lf'pan arA "equivalent ysupport 8, to the off-standing ticle of this charactery which is compact, armof `which theswitching member 6 1s simple vin construction and bygwhich' the/'pivotedms at 9, the pivot; and as a result necessary movement can be accomplished ythfe switching member'beingrheld in posiin an easy and ready manner. tion against accidental displacement by a In the drawings accompanyingfand formnutflas 10,'itt`ed vto thethreaded portion of ing part of the present specification Ihave the l'J'ivotQlshown-in detaila formof. embodiment of iFastened ,the the invention. This I will set foi-thin the E followin description. I do not,.liowever,l`

necessari y limit myself to this disclosure; I ma "de `rttherejfromin several res ects wit iii-lith; scope 0f the inven- .tion de ed by the-claims following said description.4 'i i i 'i Referring to saiddrawings: u Figure 1 is a front elevation of a switch Vinvolving the inventio Fi. 2 is a vertical sectional View of the switc Fig. 3 isa diagonal section on the line 3 3 of Fig.` 2, looking in the direction yof the arrow.

4 and 5 are cross sectionson the lines 4 4 and 5 5 respectively yof Eig.- 3, "lookinginthe direction of tha-,arrows aprpliedto.therespective L w .hke, .ipmzts members-.l1 which lare separated to receive between 'the'adjaoent contact portion 7 oftheswitohin member 6 when the switch is onlas shown or instance by dottedylines in 2. Thebases of these members 11 are supermlosed as shown for example in Fig. 3, and t the inner being perforated to receive the c screw V19 -around the outer end of which ma be` coiled the wire 4which is held in `position thenut -13 threaded onto the screw 12 cons ibut' l Suitable connection member. The i mental contact is denoted by 14 audit'i consist-of comparatively Similar m. united with the arcuateshankl lows the curvature of4 thellining 1 5 has an inturned foot, `rperforated' si passage of the screws Z-lireceiving 18, the screw 17 `connectin' meansr, position `y thenuft -will vbe clear, ther A ninals ofthe swit matin contacts illustratie?! by dot lswitch will-be in!l the th cuit closed,

i jrThere isan actuator v`-ber'as 6, and it willbe understood Vof am the .switching member invita case is moved between its on and oil' positions particular Y. Like cimenteriefrefer` throughout ,the several vie on of man ment. Patented IlIay 28; 1918` base 2 Vare the two lipped present" @11911811.18 isf a swim-.ne`

gan." member as' the centerfof-motionV of switching` 'base 2 may have fastene e inner one of them restsV against face of the base 2, the several parts f,

for a. switching mem- A rocking actuator by this single actuator as 19, Said actuator comprises an elongated linger portion eX- tending through the registering arcuate slotsAQO and 21 formed in the. shell and lining orespcctivcly, the ends of the slot 20 constituting stops to maintain the actuator lil in the two positions thereof. For ease in understanding thc iniention l have shown the actuator as only7 occupying one of its positions in Fig. 2 but have shown the switching member in both positions, hoW- ever, in said View. The actuator t9 has at its inner end a hub 23 from which there extends outward the pivot 24 projecting' through the olistanding portion of the bracket or bearing 25 united by a screw as :26 to the base 2.

e vthreznled relation.

' YThe actuatorv 19 case directly 6, acting through the intervention of yieldable or resilient means such as which is oie loop-lilre form, .T is sprin is set ina notch coiled body 30 receives the stud 31 supported by the hub and extending across the notch 29. The side branches of the spring first normally eomcrge outward, then diverge, and then cross, the crossed portions of the branches of the spring engaging opposite faces oi the switching memb normally or when the switching member-is at rest, at opposite sides of the centeior axis of oscillation thereof as shown for illustretion by Fig. Int will be assumed that the switch is in the olf position as shown for instance by i'nll lines in Fig. and that it is desired to close the circuit. in this event thc linger piece or manually1 operable portion 19 will be swung in the direction oi" the arrow near ille 'l'ree end thereof. is the finiger piece thus mores, the hub 21? ol' course, is rocked therewith` carrying the spring also iherewith and lhc free endI of the spring rolling across the switching nienlbe" (i, The bearing portions 32 of the springY during this time roll upon the switrhin lnenlber which cans the uncrossing of t e crossed por-- 'tions oi the spring just about the time the free portion( of .'he spring reach a line corresponding to the center switching member. the resultbeing that as soon as thi." line is crossed. the switching member will be ai i does not in the present once snapped to the full line position shown in Fig. Q by the side branches oi the spring.,

In Figs. 4. and 5 l have indicated by arrows the motions of the parte. As the free portions of the spring 28 move with the i9 they roll along opposite fares of the switching member and are unriossed and open just before the center ci" ation is reached. When this line is crossed, 1v spring arms ride rapidlyv along opposite part of the screw Z4 receivesthe'nut 27 io hold the actuator in assembled i er and being" of motion of the operate the switching member the spring J8 29 in the hub 23 anc its` i these.

:faces of the switching member` Iand thus snap it to its extreme position, and when the motion is finally completed, the spring arms will be again crossed but reverse-,ly to what they were before. I have described but one motion ot' the parts. It will be understood that the opposite inotiox'I is the saine in action but merelyv a reversal. Y

lt will be clear that in the constrl'lction shown and hcreinbefore described. I provide :1 spring to produce' a rapid or snapping action ot' a switching member as 6 which as a matter of preference takes the form of a contact lever. This spring is so held and shaped that` the ends thereof alone are used to obtain the jnccessary movement of the switching member to cause it to assume in sucession the on 4and the olf positions. This spring is so shaped that its ends are crossed,

switching! mem' er or' contact lever and being free, to turn. owing to the fact that a pin' as Slis passedthrongh the coiled body of the swing.;A These crossed ends or portionsy of `the spring" are free to open or expand, and they uncro'ss and arefrecrosscd by their own action on the movement of the huh or equiirr aient. part 23. In this hub or rather in n notch or slot Q9 therein is set the coiled bod)l to which l have referred, and through it pass :V said. pin 3 ln effect; therefore. the

spring or the `branches thereof are permitted the toiioat laterally so that `the,

and comparatively freely.V y can-exercise the necessary and vdesired .functions The branches or sides of the spri ugs arent practically right angles to the axisof the coiled body of the spring, and these branches are crossed opposite faces 'of the switching member at opposite sides of the center of motion. The result is that the spring has a degree of free doin necessary tosecure successive crossing and reirossing of its branches or sides.

`What i claim is:

l. snap switch comprising an oscilla-- toi); switching membri', und actuating means For imgmi'ting a snap movement to the switching member, comprising two yielriable members to engage opposite faces of the switching member and. to travel along said fares between stations at opposite sides of the center oi'` oscillation of the switching member.

2. A snapswitch4 comprising` :in oscilla tory switching member, `and armatin means foninparting a snap movement to 'comprising 'two switching member1 a yieldable arms lo engage opposite faces of the switchingfnlembel and to roll along said hoes between stations at opposite sides of the center ot oscillation of the switching member. i

"i, :i snap switch comprising an oscillaioni, switching `member. and actuating means i'or the switching member comprising ends engaging' opposite faces of they and rest against lli] - of the center of switc ing member .mg two arms to traverse opposite Lompoc two spring arms to engage opposite faces of the switching member and to travel alo said `faces between stations at 0 posite sides oscillation of t e switching ber. 4. A 'snai switch comprising an oscillatory "switc ing 'member, and actuating means for imparting a snap movement to the switching member, comprising two sprin arms to engage opposite faces of the and to roll faces between said stations at opposite sides of the center` of oscillation of the switching member.

5. A snap switch comprisin switching membe actuating means for the switchmg member, comprising two crossed spring arms to en age opposite faces of the switchingwmemer and to oll'! along said faces between stations et opposite sides of the center of oscillation of theswitching memoer, the rolling of the arms reversing their relation to each other. A snap switch comprising a.switching member, an oscillatory actuator having a notch,` a spring set in the notch .and provided with two crossed branches, the free portions of which roll along opposite faces of the switching member between. stations an oscillapositions.

A snap switch comprising a movably mounted switching member, and actuating means for the switching member com risloes thereof to snap the same between on and off positions.

8. A snap' switch comprising an oscillatory switching member, an actuator proalong said vided with a huh having a slot, the actuator tion reverse to that they last occupied t0- thus snap the switching member from one position to another. y

A snap switch comprising an oscillaenga ing opposite faces of the switching mein` at opposite sides of the axis of oscillation thereof, said sides as the actuator is movedfrom one extreme other rolling across opposite faces of the switching member, uncrossing during their 

